AFM イメージ

Bubble-like features on the MoS2 flake correspond to locally delaminated or suspended regions caused by trapped residues or interfacial gaps, appearing as lower modulus areas due to reduced substrate support.

The adhesion map shows minimal contrast across the flake, indicating consistent surface chemistry and confirming that the mechanical contrast arises from structural decoupling rather than material differences.

Scan Conditions

- System: NX10

- Scan Mode: PinPoint

- Scan Size: 3 µm×3 µm

- Scan Rate: 0.2 Hz

- Pixels: 256×256

- Cantilever: AC160TS (k=26 N/m, f=300 kHz)